1683401 has 4 divisors (see below), whose sum is σ = 1686804. Its totient is φ = 1680000.

The previous prime is 1683397. The next prime is 1683403. The reversal of 1683401 is 1043861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 525625 = 1076^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1683401 - 2² = 1683397 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1683403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (421701).

2^1683401 is an apocalyptic number.

It is an amenable number.

1683401 is a deficient number, since it is larger than the sum of its proper divisors (3403).

1683401 is an equidigital number, since it uses as much as digits as its factorization.

1683401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1683401 is about 1297.4594405992. The cubic root of 1683401 is about 118.9586043433.

The spelling of 1683401 in words is "one million, six hundred eighty-three thousand, four hundred one".